blood disorder

ABC News’ Robin Roberts, 51, who announced she will undergo a bone marrow transplant this fall to fight a rare blood disorder, was fortunate that her older sister, Sally Ann, was the perfect match to donate marrow — the only treatment for Roberts’ myelodysplastic syndrome (MDS), a type of pre-leukemia. Both women know that many patients don’t have a family member who is eligible, and they are encouraging everyone to sign up with Be The Match, an organization that helps match marrow …